| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (C) 2013 Reimar Döffinger <Reimar.Doeffinger@gmx.de> | ||
| 3 | * | ||
| 4 | * This file is part of FFmpeg. | ||
| 5 | * | ||
| 6 | * FFmpeg is free software; you can redistribute it and/or | ||
| 7 | * modify it under the terms of the GNU Lesser General Public | ||
| 8 | * License as published by the Free Software Foundation; either | ||
| 9 | * version 2.1 of the License, or (at your option) any later version. | ||
| 10 | * | ||
| 11 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 14 | * Lesser General Public License for more details. | ||
| 15 | * | ||
| 16 | * You should have received a copy of the GNU Lesser General Public | ||
| 17 | * License along with FFmpeg; if not, write to the Free Software | ||
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 19 | */ | ||
| 20 | |||
| 21 | #include <inttypes.h> | ||
| 22 | #include <stdio.h> | ||
| 23 | |||
| 24 | #include "libavutil/intreadwrite.h" | ||
| 25 | #include "libavutil/mem.h" | ||
| 26 | #include "libavutil/murmur3.h" | ||
| 27 | |||
| 28 | 1 | int main(void) | |
| 29 | { | ||
| 30 | int i; | ||
| 31 | 1 | uint8_t hash_result[16] = {0}; | |
| 32 | 1 | struct AVMurMur3 *ctx = av_murmur3_alloc(); | |
| 33 | #if 1 | ||
| 34 | 1 | uint8_t in[256] = {0}; | |
| 35 | 1 | uint8_t *hashes = av_mallocz(256 * 16); | |
| 36 |
2/2✓ Branch 0 taken 256 times.
✓ Branch 1 taken 1 times.
|
257 | for (i = 0; i < 256; i++) |
| 37 | { | ||
| 38 | 256 | in[i] = i; | |
| 39 | 256 | av_murmur3_init_seeded(ctx, 256 - i); | |
| 40 | // Note: this actually tests hashing 0 bytes | ||
| 41 | 256 | av_murmur3_update(ctx, in, i); | |
| 42 | 256 | av_murmur3_final(ctx, hashes + 16 * i); | |
| 43 | } | ||
| 44 | 1 | av_murmur3_init_seeded(ctx, 0); | |
| 45 | 1 | av_murmur3_update(ctx, hashes, 256 * 16); | |
| 46 | 1 | av_murmur3_final(ctx, hash_result); | |
| 47 | 1 | av_free(hashes); | |
| 48 | 1 | av_freep(&ctx); | |
| 49 | 1 | printf("result: 0x%"PRIx64" 0x%"PRIx64"\n", AV_RL64(hash_result), AV_RL64(hash_result + 8)); | |
| 50 | // official reference value is 32 bit | ||
| 51 | 1 | return AV_RL32(hash_result) != 0x6384ba69; | |
| 52 | #else | ||
| 53 | uint8_t *in = av_mallocz(512*1024); | ||
| 54 | av_murmur3_init(ctx); | ||
| 55 | for (i = 0; i < 40*1024; i++) | ||
| 56 | av_murmur3_update(ctx, in, 512*1024); | ||
| 57 | av_murmur3_final(ctx, hash_result); | ||
| 58 | av_free(in); | ||
| 59 | return hash_result[0]; | ||
| 60 | #endif | ||
| 61 | } | ||
| 62 |